Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é o ERP em San Martin Texmelucan, Puebla?
 ###Tabelas: CREATE TABLE jlpga_tour_15 (jlpga_tour_15_id AUTO_INCREMENT PRIMARY KEY, No. INT, Date VARCHAR, Tournament VARCHAR, Winning score VARCHAR, To par VARCHAR, Margin of victory VARCHAR, Runner(s)-up VARCHAR) CREATE TABLE station_repeaters (station_repeaters_id AUTO_INCREMENT PRIMARY KEY, Callsign VARCHAR, Network VARCHAR, City of License VARCHAR, D ERP VARCHAR, Owner / Operator VARCHAR) CREATE TABLE canada (canada_id AUTO_INCREMENT PRIMARY KEY, Team name (Affiliation) VARCHAR, Year started INT, Number of cars INT, Current car VARCHAR, Car # VARCHAR, Website VARCHAR) CREATE TABLE hills_of_gödöllő (hills_of_gödöllő_id AUTO_INCREMENT PRIMARY KEY, Further Cities VARCHAR, County, Oblast or State VARCHAR, Country VARCHAR, Distance VARCHAR, Direction VARCHAR) CREATE TABLE career_finals_9_titles_2_runner-ups (career_finals_9_titles_2_runner-ups_id AUTO_INCREMENT PRIMARY KEY, Outcome INT, Year INT, Tournament VARCHAR, Opponent in final VARCHAR, Score VARCHAR)  
SELECT D ERP FROM station_repeaters WHERE City of License = san martin texmelucan, puebla